Here's what rhymes with propnr.
                        
                        
                    
                                Words that almost rhyme with propnr
upper  rupture  runner  other  under  brother  younger  lover  rubber  utter  supper  lumber  plunder  ulcer  blunder  lustre  rudder  drummer  gunner  luster  plunger  rougher  usher  blubber  bluster  plumber  udder  plover  umber  number  culture  mother  structure  color  cover  summer  suffer  wonder  butter  hunger  buffer  cluster  sulphur  thunder  vulgar  hunter  molar  sulfur  comer  cutter  flutter  gutter  muster  shudder  shutter  slumber  youngster  bumper  bunker  clutter  hover  mutter  paler  sucker  tougher  buzzer  duller  erasure  jumper  succor  tuber  vulture  bugger  crusher  duster  juster  muffler  putter  sunder  another  recover  sculpture  juncture  ocular  sculptor  asunder  butler  puncture  ligature  tumbler  abductor  outnumber  premolar  smother  adjuster  embrasure  scrubber  smuggler  sputter  stutter  tricolor  discover  instructor  uncover  midsummer  restructure  coadjutor  encumber  pustular  agriculture  conductor  constructor  substructure  undercover  watercolor  filibuster  superstructure  acupuncture  horticulture  aquaculture  chronometer  conjuncture  counterculture  rediscover  cartographer  pentameter  infrastructure  superconductor  semiconductor